 |
| |||
| concrete vault | |||
| бетонная шахта: 8 phrases in 4 subjects |
| Astronautics | 5 |
| Construction | 1 |
| Electronics | 1 |
| Nuclear and fusion power | 1 |
|
| |||
| concrete vault | |||
| бетонная шахта: 8 phrases in 4 subjects |
| Astronautics | 5 |
| Construction | 1 |
| Electronics | 1 |
| Nuclear and fusion power | 1 |